Hang in there. I can empathize. I was about to give up a few times. I’ve learned to rely on what has done well (relatively speaking) for me. This means fruit trees that can survive cold temp, swing temp, have some disease resistance and are not killed by diseases or voles/bunnies, etc.
So, pears and apples are for me. I gave up on blueberries and about to on figs, two fruit trees that other people said “ carefree, easy, etc”. Good for them.
Also, it’s a lot of work to deter birds, squirrels, groundhogs, opossums, deer. I have a couple of years of no fruit because of nature and/or diseases.
Take this season to re-group. Spend more time and energy on what work for you. It is more rewarding that way. Best of luck.